EP 3015185 A4 20160608 - PRESS FORMING METHOD AND PRESS FORMING DEVICE
Title (en)
PRESS FORMING METHOD AND PRESS FORMING DEVICE
Title (de)
PRESSFORMVERFAHREN UND PRESSFORMVORRICHTUNG
Title (fr)
PROCÉDÉ D'EMBOUTISSAGE ET DISPOSITIF D'EMBOUTISSAGE
Publication
Application
Priority
- JP 2013134446 A 20130627
- JP 2014015730 A 20140130
- JP 2014060624 W 20140414
Abstract (en)
[origin: EP3015185A1] A method of press forming according to the present invention is characterized in that the method includes a first forming step of forming a punch bottom portion 31a and side wall portions 31b in a product shape with a die 3 and a punch 5 until reaching a first bottom dead center, and forms an outer flange 31c and an inner flange 31d so that a linear length of an outer flange 31c in a longitudinal direction is shorter than a linear length of the flange portion in the product shape, and a linear length of a inner flange 31d in the longitudinal direction is longer than the linear length of the flange portion in the product shape; and a second forming step of forming the outer flange 31c and the inner flange 31d that are formed in the first forming step, in the product shape with the die and a flange forming die 7 until reaching a second bottom dead center, wherein the first forming step and the second forming step are performed by a single press forming process.
IPC 8 full level
B21D 22/22 (2006.01); B21D 22/26 (2006.01)
CPC (source: EP US)
B21D 22/02 (2013.01 - US); B21D 22/10 (2013.01 - EP US); B21D 22/26 (2013.01 - EP US)
Citation (search report)
- [A] JP 2012051005 A 20120315 - SUMITOMO METAL IND, et al
- See references of WO 2014208181A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3015185 A1 20160504; EP 3015185 A4 20160608; EP 3015185 B1 20170308; CN 105358269 A 20160224; CN 105358269 B 20171020; JP 2015027698 A 20150212; JP 5664810 B1 20150204; KR 101779688 B1 20170918; KR 20160010599 A 20160127; MX 2015017646 A 20160415; MX 370005 B 20191128; US 10286436 B2 20190514; US 2016121384 A1 20160505; WO 2014208181 A1 20141231
DOCDB simple family (application)
EP 14817881 A 20140414; CN 201480036579 A 20140414; JP 2014015730 A 20140130; JP 2014060624 W 20140414; KR 20157035903 A 20140414; MX 2015017646 A 20140414; US 201414896229 A 20140414